<template>
  <div>

    <!-- 1.定义面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 2.定义卡片视图 -->
    <el-card class="box-card" >
       <!-- 3.定义栅格的一行 :gutter="20"定义行间距   :span="9" 占位符  -->
       <el-row :gutter="20">
         <el-col :span="9">
            <!-- 3.定义搜索框 -->
            <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable  @clear="getUserList">
                <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
            </el-input>
         </el-col>
       </el-row>


        <!-- :data 就是 v-for prop就是要绑定的数据-->
       <!-- 用户数据表格展现  border 边框线属性
              type="index" 表格的索引值
       -->
       <el-table :data="userList" border>
           <el-table-column type="index" label="序号"></el-table-column>
           <el-table-column prop="username" label="用户名"></el-table-column>
           <el-table-column prop="phone" label="电话"></el-table-column>
           <el-table-column prop="email" label="邮箱"></el-table-column>
           <el-table-column prop="status" label="状态">
             <template slot-scope="scope">
               <el-switch v-model="scope.row.status" @change="updateStatus(scope.row)"
                  active-color="#13ce66" inactive-color="#ff4949">
                </el-switch>
             </template>

           </el-table-column>
           <el-table-column label="操作">
             <template slot-scope="scope">
                <el-button type="primary" icon="el-icon-edit" size="small" @click="updateUserBtn(scope.row)"></el-button>
                <el-button type="danger" icon="el-icon-delete" size="small" @click="authentication(scope.row)"></el-button>
             </template>

           </el-table-column>
       </el-table>

       <!-- 定义分页组件 关于分页插件的属性说明
            1.@size-change 如果分页中每页实现的条数发生变化 则会触发这个该事件
            2.@current-change 当页数发生改变时,触发该函数
            3.current-page 当前选中的页
            4.page-sizes   页面数据展现的选项
            5.page-size    默认选中的页数
            6.layout    分页中展现的数据种类
            7.<total></total>     记录总数
       -->
        <el-pagination
             @size-change="handleSizeChange"
             @current-change="handleCurrentChange"
             :current-page="queryInfo.pageNum"
             :page-sizes="[5, 10, 20,40]"
             :page-size="queryInfo.pageSize"
             layout="total, sizes, prev, pager, next, jumper"
             :total="total">
        </el-pagination>
    </el-card>



    <!-- 定义修改页面 当对话框关闭时,将表格数据重置-->
    <el-dialog title="修改用户" :visible.sync="updateDialogVisible" width="50%" @close="closeUpdateDialog">
      <!-- 定义用户提交表单数据-->
      <el-form :model="updateUserModel" :rules="rules" ref="updateUserRef" label-width="100px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="updateUserModel.username"  disabled ></el-input>
        </el-form-item>
        <el-form-item label="旧密码" prop="password">
          <el-input type="password" v-model.trim="updateUserModel.password"   ></el-input>
        </el-form-item>
        <el-form-item label="新密码" prop="newPassword">
          <el-input type="Password" v-model.trim="updateUserModel.newpassword"  placeholder="此框输入即修改密码,不输入不会修改密码"></el-input>
        </el-form-item>
        <el-form-item label="电话" prop="phone">
          <el-input v-model="updateUserModel.phone"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="updateUserModel.email"></el-input>
        </el-form-item>
      </el-form>

      <span slot="footer" class="dialog-footer">
        <el-button @click="updateDialogVisible = false" >取 消</el-button>
        <el-button type="primary" @click="updateUser">确 定</el-button>
      </span>
    </el-dialog>

<el-dialog title="验证管理员权限" :visible.sync="authenticationVisible" width="50%" @close="closeUpdateDialog">
      <!-- 定义用户提交表单数据-->
      <el-form :model="authenticationModel" :rules="rules" ref="updateUserRef" label-width="100px">
        <el-form-item label="管理员账号" prop="username">
          <el-input v-model="authenticationModel.username" ></el-input>
        </el-form-item>
        <el-form-item label="管理员密码" prop="password">
          <el-input v-model.trim="authenticationModel.password"></el-input>
        </el-form-item>
      </el-form>

      <span slot="footer" class="dialog-footer">
        <el-button @click="authenticationVisible = false" >取 消</el-button>
        <el-button type="primary" @click="auth()">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>

  export default {
    data(){
      //校验邮箱规则 rule校验规则   value校验的数据   callback回调函数
      const checkEmail = (rule, value, callback) => {
        //定义邮箱的正则表达式  JS中用/来表示正则表达式的开始和结束
        const emailRege = /^[a-zA-Z0-9-_]+@[a-zA-Z0-9-_]+\.[a-zA-Z0-9-_]+$/
        //正则表达式语法校验  test(xx) 校验成功 返回true  校验失败返回false
        if (emailRege.test(value)) {
          //表示邮箱合法 正确返回
          return callback()
        }
        callback(new Error('请填写正确的邮箱地址'))
      }
      //校验手机号的邮箱规则
      const checkPhone = (rule, value, callback) => {
        //定义校验手机号的正则语法
        const phoneRege = /^1[34578][0-9]{9}$/
        if (phoneRege.test (value)) {
          return callback()
        }
        callback(new Error('请填写正确的手机号'))
      }

      return {
        deleteId: '',
        queryInfo: {
          query: '',
          pageNum: 1,
          pageSize: 5
        },
        userList: [],
        //记录总数是数值类型
        total: 0,
         authenticationVisible: false,
         authenticationModel:{
            username: '',
            password: ''
         },


        //数据校验规则
        rules: {
          username: [
                  { required: true, message: '请输入用户名', trigger: 'blur' },
                  { min: 3, max: 30, message: '长度在 3 到 30 个字符', trigger: 'blur' }
                ],
          password: [
                  { required: true, message: '请输入密码', trigger: 'blur' },
                  { min: 3, max: 30, message: '长度在 3 到 30 个字符', trigger: 'blur' }
                ],
           newPassword: [
                   { min: 3, max: 30, message: '长度在 3 到 30 个字符', trigger: 'blur' },
                 ],
          phone: [
                  { required: true, message: '请输入手机号', trigger: 'blur' },
                  { min: 3, max: 30, message: '长度在 3 到 30 个字符', trigger: 'blur' },
                  { validator: checkPhone , trigger: 'blur' }
                ],
          email: [
                  { required: true, message: '请输入邮箱', trigger: 'blur' },
                  { min: 3, max: 30, message: '长度在 3 到 30 个字符', trigger: 'blur' },
                  { validator: checkEmail , trigger: 'blur' }
                ]
        },
        updateDialogVisible: false,
        //定义修改用户数据封装
        updateUserModel: {
        }
      }

    },
    methods: {
      async authentication(user){
        this.authenticationVisible = true;
        this.deleteId = user.id;
      },
      async auth(){
        const {data: result2} = await this.$http.get(`/user/auth/${this.authenticationModel.username}/${this.authenticationModel.password}`);
        if(result2.data === 'ok'){
          const result =  await this.$confirm('此操作将永久删除 , 是否继续?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                  }).catch(error => error)

          //如果确认  confirm  如果取消 cancel
          if(result !== 'confirm'){
             return this.$message.info("删除取消")
          }
          const {data: result2} = await this.$http.delete(`/user/${this.deleteId}`)
          if(result2.status !== 200) return this.$message.error("删除失败")
          if(result2.data === "no") return this.$message.error("不能删除管理员账号")
          this.$message.success("删除成功")
          //重新加载 数据
          this.getUserList()
          this.authenticationVisible = false
          return
        }

          this.authenticationVisible = false
          this.deleteId = '';
           return this.$message.error('管理员账号或密码错误');
      },
      async getUserList(){
        const {data: result} = await this.$http.get('/user/list',{
           params: this.queryInfo
        })
        if(result.status !== 200) return this.$message.error("用户列表查询失败")
        this.userList = result.data.rows
        this.total = result.data.total
        console.log("总记录数:"+this.total)
      },
      async updateStatus(user){
        const {data: result} = await this.$http.put(`/user/status/${user.id}/${user.status}`)
        if(result.status !== 200) return this.$message.error("用户状态修改失败!")
        this.$message.success("用户状态修改成功!")
      },
      handleSizeChange(pageSize){
        //console.log("每页展现的条数"+pageSize)
        this.queryInfo.pageSize = pageSize
        this.getUserList()
      },
      handleCurrentChange(pageNum){
        //console.log("页数:"+pageNum)
        this.queryInfo.pageNum = pageNum
        this.getUserList()
      },
      closeDialog(){
        //重置表格数据
        this.$refs.addUserRef.resetFields()
      },

      async updateUserBtn(user){
        this.updateDialogVisible = true
        const {data: result} = await this.$http.get("/user/"+user.id)
        if(result.status !== 200) return this.$message.error("用户查询失败")
        this.updateUserModel = result.data
      },
      closeUpdateDialog(){
        //重置表格数据
        this.$refs.updateUserRef.resetFields()
      },
      updateUser(){
        //1.预校验数据
        console.log(this);
        this.$refs.updateUserRef.validate(async valid => {
           if(!valid)  return this.$message.error("表单验证没有通过")
           //根据接口文档要求封装数据
           let user = {}
           user.id = this.updateUserModel.id
           user.password = this.updateUserModel.password
           user.newpassword = this.updateUserModel.newpassword
           user.phone = this.updateUserModel.phone
           user.email = this.updateUserModel.email
           const {data: result} = await this.$http.put(`/user/updateUser`,user)
           if(result.status !== 200) return this.$message.error("用户修改失败")
           if(result.data === 'no1') return this.$message.error("修改失败,新密码与旧密码相同")
           this.$message.success('修改成功');
           this.updateDialogVisible = false
           this.getUserList()
        })
      },
    },
    //利用钩子函数实现数据查询
    mounted(){
      this.getUserList()
    }
  }
</script>


<style lang="less" scoped>

</style>
